Question about Motorcycles
It could be a number of things. I would Strongly recommend that you have a leak down test done. If you dont already have a service manual you need to get one. (Not an owners manual) I have seen it before that the spark plugs were not torqued tight enoungh. I would start with that. Make sure they are tight. Pull the rocker box off check the the valves and make sure that they are sitting flush. Sometime there will be alot of carbon build up on them. When and if you clean them make sure you lap them. You can get a kit for that. You are going to want to replace any and all gaskets that you see taking everything apart. But take the time to inspect the old ones. If the cylinder head gasket went bad it will happen. Find a perfectly level surface and lay the rocker box on it (I have a granite slab ) check the service manual for the tolerance and make sure it did not warp At this point you have two options. Option 1 you put it back together and hope that you found the problem. Option 2: (fun part) if you failed the leak down test you need to pull the pistons, check the rings. Sometimes you can tell if there is oil in the cylinder but you cant always tell by this. (And honestly if you have to do all of this you might want to find a really good garage to help you) Now you have to measure the cylinders and compareit to the measurement of its repective piston. You will measure the cylinders in 6 different places on each one and make sure the cylinder is still round and not egg shaped and check the tolerance in the service manual. And at this point therings and the gaskets all need replaced. The cylinders will need honed and depending how far off the cylinders are you mayneed new pistons to fit the new cylinder bore. At this point if its worstcase scenario save your self some money and buy a new engine or build the engine for performance. Hope this is not to discouraging and good luck I hope its option 1
Posted on Dec 05, 2014
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Posted on Jan 02, 2017
SOURCE: FI light comes on. Honda CBR 600
FL stands for Fuel Injecton. Your fuel injection sensors have found a problem and the onboard computer chip is telling you. You must have a dealer read the computer code to find out what the problem is.
Posted on Sep 23, 2009
Check your plugs. If all four are sparking then your carbs are out of sync. They will need to be re-balanced.
If you are capabable in doing this job your self, you will need a screwdriver that fits your adjuster screws and a CarbTune Carb balancer.
Remove your tank and airbox.
You should see the flaps inside your carbs. These should open when you move your throttle.
Start on the outside carbs to get them balanced with the 2 centre ones.
To start, unscrew the adjusters all the way out. then screw them in until the 2 outer carbs move at the same time as the inner 2 carbs
Once this is done then adjust the centre balancer to syncronise the 2 left hand carbs to the 2 right hand carbs.
Now if you have done this correctly, all four carbs should open at the exact same time.
If you have a Carbtune balancer, remove the plugs from the top of your inlet manifold and plug in the hoses from the carbtune balancer.
Start the engine and adjust the screws until the weights inside the Carbtune balancer all read the same.
Once done, remove the balancer, replace the plugs into the inlet manifold, refit the airbox and tank and it should run so much better.
If your not 100% confident to unertake this job yourself, take the bike to your local dealer and ask to have the carbs balanced.
Posted on Mar 15, 2010
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